I 



VOL. 1, 16 



FIG. 1— SANDSTONE DIKES ON ROARING RIV'R 

 1 FOOT AND 6 INCHES THICK. 









is**! 



,#'V 



^-r.;- 







FIG 2— GREAT SANDSTONE DIKE ON ROA 

 RIVER 5 FEET THICK. 



FIG. 3. — GROUP OF SANDSTONE DIKES ON NORTH 

 FORK THE LARGEST 4 INCHES THICK. 



FIG 4— LATERAL VIEW OF SANDSTONE Dl 

 ON DRY CREEK. 



